prime meridian
noun Date: circa 1859 the meridian of 0 degrees longitude which runs through the original site of the Royal Observatory at Greenwich, England, and from which other longitudes are reckoned

New Collegiate Dictionary. 2001.

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  • Prime Meridian — 0° Prime Meridian …   Wikipedia

  • Prime meridian — Prime Prime, a. [F., fr. L. primus first, a superl. corresponding to the compar. prior former. See {Prior}, a., {Foremost}, {Former}, and cf. {Prim}, a., {Primary}, {Prince}.] 1. First in order of time; original; primeval; primitive; primary.… …   The Collaborative International Dictionary of English

  • prime meridian — Meridian Me*rid i*an, n. [F. m[ e]ridien. See {Meridian}, a.] [1913 Webster] 1. Midday; noon. [1913 Webster] 2. Hence: The highest point, as of success, prosperity, or the like; culmination. [1913 Webster] I have touched the highest point of all… …   The Collaborative International Dictionary of English

  • prime meridian — n. the meridian from which longitude is measured both east and west; 0° longitude: it passes through Greenwich, England: see LATITUDE …   English World dictionary

  • prime meridian — noun meridian at zero degree longitude from which east and west are reckoned (usually the Greenwich longitude in England) • Hypernyms: ↑meridian, ↑line of longitude • Instance Hyponyms: ↑Greenwich Meridian * * * noun the prime meridian : an… …   Useful english dictionary

  • prime meridian — prime′ merid′ian n. geo the meridian running through Greenwich, England, from which longitude east and west is reckoned • Etymology: 1860–65 …   From formal English to slang

  • Prime Meridian — Prime Me|rid|i|an the imaginary line drawn from north to south on the earth, from which east and west are measured in degrees on a map …   Dictionary of contemporary English

  • prime meridian — the meridian running through Greenwich, England, from which longitude east and west is reckoned. [1860 65] * * * …   Universalium

  • prime meridian — noun The reference line at 0° longitude, passing through Greenwich, England, from which longitude east and west is measured. Syn: Greenwich meridian …   Wiktionary

  • prime meridian — The meridian passing through Greenwich (UK). It is longitude 0°. See longitude …   Aviation dictionary

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